package com.example.demo.dto;

import java.io.Serializable;

public class NullWritable implements Serializable{
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	private static NullWritable instance = new NullWritable();

	private NullWritable() {
	}

	public static NullWritable nullWritable() {
		return instance;
	}
}
